\begin{table}%t8
\caption{\label{binind}New indication of binarity from the amplitude behaviour.}
%\centerline
{\small
\begin{tabular}{lcccc}
\hline\hline
%\noalign{\smallskip}
Cepheid & $q$ & $A_B/A_V$ & $m$ & $k$ \\
%\noalign{\smallskip}
\hline
%\noalign{\smallskip}
SZ Aql    & & & +r & +r \\
V1344 Aql & & & & + \\
CY Car    & & + & na & na \\
FM Car    & na & + & na & na \\[1ex]
UZ Cas    & + & + & na & na \\
VW Cas    & + & & + & + \\
BP Cas    & + & + & na & na \\
CT Cas    & + & & na & na \\[1ex]
AY Cen    & & + & na & na \\
CR Cep    & + & & + & + \\
X Cyg     & & & +r & \\
VY Cyg    & & & + & + \\[1ex]
GI Cyg    & na & + & na & na \\
V459 Cyg  & & + & na & na \\
V495 Cyg  & + & + & + & + \\
V924 Cyg  & & + & na & na \\[1ex]
UY Per    & & + & na & na \\
VZ Pup    & & & + & + \\
V773 Sgr  & & + & & na \\
KQ Sco    & & & +r & +r \\[1ex]
RY Vel    & & + & + & + \\
SW Vel    & & & + & + \\
DR Vel    & & & & +r \\
\hline
\end{tabular}}
\par
\medskip
A + sign means a value indicating a companion. Letter ``r'' denotes a 
red companion, otherwise blue companions are inferred (except in the column $q$). 
``na'' stands for non-applicable because of missing amplitude(s).
\end{table}